Originally Posted by Lasalle
A nice side benefit for the initial players, Oppo is dead. All the new player writeups focus is on the improved clock and resulting jitter from the separate HDMI enhance audio output. Backward accommodation is a nice two for. I gather this can’t be accommodated on an HTPC, too bad.
links? not that i don't believe you they have to come up with something to give user a reason to buy a new one.
BTW. you are aware that double HDMI can backfire "a little" A/V sync is out of control.
and i have a very hard time to believe your link text.
In facts, while the CD contains the music information, the rate with which this information must be transformed into music is a pre-defined, fixed standard, depending only on the type of support (CD, DVD, SACD) and the track or layer selected. Much alike the turntable, by the way: the reproduction speed, at least in the recent decades, was standardized at 33 1/3 or 45 RPM.
By the way, there is a major difference between turntable and CD speed: while the vinyl record is to be read at a constant rotational speed, the CD must be read at a constant linear speed: that is, while the turntable rotates always at the same RPM, whichever the position of the pickup on the record, the CD player rotates slower when the laser pickup is in the inner areas than when it is in the outer. This means that, in order to supply a perfectly stable and constant data flow, it is necessary to control the speed of the player spinning motor through sophisticated systems. The motor in turn can absorb high current pulses when a sudden speed correction is required, causing a great part of the EMI pollution in a CD player.
In integrated CD players, the master clock is normally placed near the DAC circuits, and for very good reasons, as we'll see. When the transport is designed also for stand-alone operation, however, often it can be instead found directly on the transport board (e.g. Philips CD Pro2 and all the CD ROM readers: in both cases, however, there is also a "service" DAC on board)
there is no way a modern player isn't buffering and read the CD much faster just to be able do error correction.
on DVD and BD the data stream is VBR anyway.
and if jitter would be a problem for audio it would be a problem for video too both is fixed the same way.